Stovepipe-fastener



(No Modl E. W. MOHROFF. STOVEPIPE FASTENER.

N0. 509,665; Patented J u1y4, 1893.

, ,gOLWMOL INVENTOH I 412M02 A UNITED STATES PATENT OFFICE.

EDWARD W. MOHROFF, OF MADISON, WISCONSIN.

STOVEPI PE-FASTEN ER.

SPECIFICATION forming part of Letters Patent No. 500,667, dated July 4,1893.

Application filed March 3, 1893. Serial No. 464,593. (No model.)

To coZZ whom it may concern.-

Be it known that I, EDWARDW. Mormons, a citizen of the United States,residing at Madison, in the county of Dane and State of Wisconsin, haveinvented a new and useful Stovepipe-Fastener, of which the following isa specification.

My invention relates to improvements in devices for fastening stovepipes in chimneys; and the objects of inyimprovements are first toprovide a fastening device which shall be looked upon and against thewalls of the chimney where the stove pipe hole enters the same; secondto provide a clamp connected with said fastening device which shall lockthe stove pipe entering the chimney to said part so locked to the wall.I attain these ob jects by the mechanism illustrated in the accompanyingdrawings in which- Figure 1. is a front view of my device before it isapplied; and Fig. 2. is a horizontal projection thereof when applied,showing also lateral sections of the chimney wall.

Similarv letters and figures refer to similar parts throughout theseveral views.

I provide the broken compression ring a, a slightly elastic metal striphaving its ends bent perpendicularly outward forming the separatelugs 1. 1, and having the circular or hearing part of its peripheryinside a little less than the outside periphery of the stovepipe so asto admit of its attachment to the pipe by compression. The ringiscompressed upon the pipe by turning in the clamp screw, or nutted screwbolt 1), which is inserted lat erally through perforations in the twolugs 1 1. At two opposite sides in the ring a about ninety degrees fromthe opening the two arms 0 c are attached formed of elastic metal stripsprojecting perpendicularly from the edge of the ring so that they willextend along and beyond the stove pipe and into its hole, but not intothe chimney opening, their outer sides resting for a distance from theends against the chimney wall 2 i on either side. One of the arms 0. isprovided with a double lug (1, extending at right angles inwardly; inwhich lug the brace f. is articulated upon the movable pin g; insertedin one of a series of perforations by which arrangement the lever 1. maybe adjusted so as to bear with force directly against one of the arms 0'and so as to bear by pressure upon the lug against the other arm 0. Theopposite arm 0' is provided on its inner surface with a stop 6. near itsoutward end and with the two separated guides h h leading to the stop,for guiding and stopping the movable or free end of the bracef. whenbrought from its pendent position at f. to its rigid or operatingposition at f.

The operation of my device will consist in placing the same with theclamp ring or.

against or near the chimney forming an outward extension of the stovepipe hole and with the arms 0 0 extending into and along the sides ofthe hole the ends of the arms being laterally against the chimney wall.The bracef. is hung by the pin g. inserted in such perforations as willallow the brace f. to be driven home with some pressure. The brace willbe driven to its position at f against the arm 0 which will press thetwo arms 0. 0'. against the chimney wall, and the fastener will thus belocked in the chimney. The end of a length of pipe, will now be insertedin the compressing ring a. and through the same a distance to its properplace in the stove pipe hole. The ring will then be compressed by theturning in of its clamp screw 1), and the length of pipe will thus belocked in the fastener and will retain its place against the pressure orpull of other joined lengths tending to force it into or out of thechimney.

What I claim as my invention, and desire to secure by Letters Patent, is

1. A stove pipe fastener consisting of a broken ring on the pipea clampscrew through the parts of the ring near the ends, arms reaching fromthe ring to the walls in the pipe hole a double lug with graduatedperforations upon one arm and abrace upon a pin in the perforationsdriven against the other arm.

2. In combination a ring clasping a stove pipe, two arms upon the ring adouble lug with graduated perforations upon one arm, guides and a stopupon the other arm and a brace articulated upon a pin in theperforations and driven between the guides to the stop.

EDWARD WV. MOHROFF.

Witnesses:

CHAS. G. MAYERs, J. E. WAKELY.

